iRobot Roomba i3+ EVO (3550) Self-Emptying Robot Vacuum – Now Clean by Room with Smart Mapping, Empties Itself for Up to 60 Days, Works with Alexa, Ideal for Pet Hair, Carpets, Roomba i3+
Condition: Used - Very Good
Buy Now, Pay Later
As low as
/ mo
Learn more
- – Up to 36-month term if approved
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 1 left in stock, order soon!
Arrives
Thursday, Jun 11
Color: Gray
Features
- PERFORMANCE: The iRobot Roomba i3 plus (3550) Wi-Fi Connected Robot Vacuum pulls in stubborn dirt with a Premium 3-Stage Cleaning System and 10X the Power-Lifting Suction. Control how you clean with the iRobot Home app or your voice assistant
- AUTOMATIC DIRT DISPOSAL: Forget about vacuuming for months at a time with the Clean Base Automatic Dirt Disposal that allows the i3 plus to empty itself for up to 60 days.
- APP: The newly updated iRobot Home App allows you to upgrade your overall cleaning experience. Enjoy features that work around your life, including personalized scheduling suggestions and seasonal recommendations, all tailored to your unique needs
- VOICE ASSISTANCE: The Robot Vacuum learns your cleaning habits to offer up personalized schedules, while Google Assistant and Alexa allow you to start cleaning with just the sound of your voice. The i3 will even suggest an extra clean when your areas pollen count is high or during pet shedding season
- TECHNOLOGY: Patented Dirt Detect Technology helps your robot find the dirtier areas in your home, like high-traffic spots, and cleans them more thoroughly
Description
Now the Roomba i3 plus EVO robot vacuum is smarter than ever, learning and mapping your home room-by-room so it can clean the room you want, when you want—with 10x the Power-Lifting Suction and Premium 3-Stage Cleaning System. Powered by iRobot Genius, it stays one step ahead of everyday messes, by learning your life and suggesting cleaning schedules—to clean when you’re out enjoying life. On-demand cleaning is only a command away, with Google Assistant and Alexa compatibility that let you direct your robot to messes right when they happen. With Clean Base Automatic Dirt Disposal, Roomba will return itself to the base when the bin is full, automatically empty and resume cleaning, so you don’t have to think about emptying the bin for months at a time. (Compared to the Roomba 600 series cleaning system).
Brand: iRobot
Model Name: i355
Surface Recommendation: Carpet
Special Feature: Automatic Dust Collection, Pet Hair Pick Up, Room-By-Room Navigation, Scheduling, Self-Emptying, Smart Mapping See more
Color: Gray
Surface Recommendation: Carpet
Other Special Features of the Product: Automatic Dust Collection, Pet Hair Pick Up, Room-By-Room Navigation, Scheduling, Self-Emptying, Smart Mapping
Filter Type: Disk
Battery Life: 75 minutes
Battery Type: Lithium Ion
Voltage: 14.4 Volts
Capacity: 13.5 ounces
Power Source: Battery Powered
Batteries are Included: Yes
Control Method: Voice
Form Factor: Robotic
Item Dimensions L x W x H: 13.34"L x 13.26"W x 3.63"H
Item Weight: 6.8 Kilograms
Color: Gray
Recommended Uses For Product: Cleaning floors, Cleaning specific rooms, Picking up pet hair
Portable: No
Indoor Outdoor Usage: Indoor
Number of Wheels: 2
Style Name: Roomba i3+ Older
Brand Name: iRobot
Model Name: i355
Included Components: • 1 Roomba® i3+ Robot Vacuum • 1 Clean Base® Automatic Dirt Disposal • 2 Dirt Disposal Bags • 1 Extra High-Efficiency Filter
Model Number: i355020
Global Trade Identification Number:
UPC: 885155023452
Manufacturer Warranty Description: 1 year limited.
Number of Items: 1
Item Type Name: Robotic Vacuum
Manufacturer: iRobot
Unit Count: 1.00 Count
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jun 11
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Top Amazon Reviews
🚀 Abunda's Overview
This is our summary and key points to consider based on customer reviews.
The Roomba i3+ model from iRobot garners generally positive reviews from users. Most users commend its mapping functions and automatic dirt disposal features. Although users do experience a few hitches with initial setup and occasional misperformance, overall, most find it an excellent investment for effortless and reliable automated cleaning routines.
Pros
- 👍 Advanced mapping functions allow the robot to learn and adapt to the layout of your home.
- 👍 Automatic dirt disposal feature in the dock significantly reduces maintenance.
- 👍 Efficient and thorough cleaning can replace conventional sweeping and vacuuming.
- 👍 The robot can selectively clean areas depending on its use via the schedule function.
- 👍 The robot is praised for its strong suction power and ability to handle pet hair.
Cons
- 👎 Some users report the robot struggles with navigation in smaller spaces.
- 👎 The vacuum can get stuck on area rugs and sometimes mistakes them for cliffs.
- 👎 The vacuum is louder than other models and particularly loud when emptying its contents.
- 👎 The initial creation of the Smart Map can take several attempts.
- 👎 Some users have reported false error messages and bugs within the app.
Should I Buy It?
If you're seeking an automated vacuum with strong suction, an automatic dirt disposal feature, and smart mapping capabilities, the Roomba i3+ from iRobot is a great option. Users find it especially useful for everyday maintenance and dealing with pet hair. It may require some guidance in small spaces and initial setup patience, but overall, it saves a significant amount of time and maintains a clean environment. Taking into account its higher price point, it's worth considering if these features and conveniences align with your needs.
Color: Black
Terrible… I read only good reviews.. I guess mine came from the last person n wasn’t calibrated at all… came back from deployment months after purchase n excited to clean my home with a busy schedule n this thing is honestly useless… sorry it’s harsh but it’s the truth… I will be finding a way to return it
...
show more
Reviewed in the United States on April 2, 2026 by Anita Namanya
Color: Black
Setting up this iRobot with the Auto Empty was fast and easy. Only thing you have to watch out for during setup is that it is only compatible with 2.4ghz Wi-Fi. Other than that, it should only take a few minutes to detect and connect, followed by charging before it's first run. Mapping my 1400sf home only took a few minutes and it was ready to start it's first vacuum job. The app is pretty simple to use and lets you edit the room names and allows you to merge the rooms into one in case you want to schedule a couple of adjacent rooms to vacuum per job. The iRobot is relatively quiet unless you're in the same room with it. The only part that is really loud is when it docks and the Auto Empty feature kicks in. But it is loud for a reason, very strong suction to get all the dust out from the small dustbin. If you've never had the Auto Empty before, it is a game change because it holds quite a bit before you have to dump it out. Overall, works very well without any problems. A small setback is the battery being a little too small, the iRobot had to dock itself a few times to recharge before completing the job and my home is only 1400sf. It wont be a problem at all if I schedule it during the hours that I'm not home so I won't have to see it running around on and off for a few hours.
...
show more
Reviewed in the United States on August 15, 2025 Reviewed in the United States on August 15, 2025 by aaron
Color: Black
I have had my Roomba for a year now. Previously I owned a different brand but have a dog that sheds badly and thought this one might do a better job. It seems to clean fairly well and only occasionally has an issue. It is great about not bumping into furniture. It seems to get caught on my rug quite a bit though or at least pull the corner over. All in all, I like how it works. However, the set up was terrible. After multiple attempts, I finally discovered that it is only compatible with 2.4ghz Wi-Fi and of course that is not what I had. So I had to have the Internet people give me another option. Anyways but the one thing I absolutely hate about this machine is the APP. In my opinion it is terrible, hard to access quickly and keeps dropping the settings I have in place as well as the Wifi. Unfortunately because of the app, I will probably not purchase a Roomba again.
...
show more
Reviewed in the United States on April 17, 2026 by Kidsmama
Color: Gray
PLEASE, PLEASE, DO NOT BUY THIS!!!!! iRobot is supposed to be the pioneer of robot vacuums, so I assumed they would have a solid product. I WAS WRONG. Let's start with the setup. It requires a 2.4 GHz Wi-Fi to set it up. May not be a problem for some, but most modern routers broadcast in both bands and most phones connect to the 5 GHz band by default. As a System Admin it was even frustrating for me setting this thing up, so I can only imagine the issues someone with with little IT experience would have getting it setup. I cleans about as well as you'd expect for a robot (when it cleans), but it's not going to eliminate your need for a good regular sweep or vacuum every week or so. Now for the really negative part...ERROR 15. This is the generic error from iRobot that you can expect on almost a daily basis. Almost every time it ran it ended up stopping in the middle of a room or up against a wall or even on the homebase with an Error 15, which means the robot rebooted itself. Mine does this CONSTANLY. Even after having both left and right wheel modules replaced and then having a brand new robot shipped to me...same error 15 on EVERY run. That brings me to iRobot's Customer Service. I can't even begin to describe how HORRIBLE it is. To start with, trying to submit a ticket via the app or their website is a pain in the butt. The process is not very intuitive at all. Once you get a ticket submitted you get an email with a case number, but there's NO way to lookup or track the ticket once you submit it. You just have to wait for them to email you back. The first ticket I opened was never responded to, so I had to open another one. From the time I opened the first ticket to the time I heard from a rep on the second one was over a week. I asked for a refund for the product, but was told first they would have to go though the troubleshooting process. So I did all their reboots and resets over and over with the same results...ERROR 15. After almost two weeks of emails back and forth they said it was one of the wheel modules and would send a new one. I was told I would get it within 5 business days....NOPE...more like 18 days..they blamed it on the holidays for it being late...SMH. So when I finally get the wheel and replace it...yep...ERROR 15 on first run, so they send the other wheel to replace it...so after another 2 weeks of emails and waiting on shipping I put the other wheel in...ERROR 15. At this point they shipped a new robot to me and I had to take the old one apart to the the battery out and the dust bin. Set the new robot up, send it on a mapping run with no problem, then the first day it goes on a cleaning run...ERROR 15. So, after 2 and a half months of multiple tickets back and forth I finally open another ticket to once again request a refund and again I'm told I have to go though the troubleshooting steps. I explained what was going on, referenced past ticket numbers and said I just needed to have a refund processed. This guy would take 3 or 4 days to respond to my emails and after about two weeks he finally tells me they can't refund my money because I purchased it on Amazon and that I would need to go though Amazon for the return! After the 2.5 months of troubleshooting and waiting the Amazon return window has closed. So I'm stuck with a $400 piece of crap that they refuse do anything with now. I'm told no refund and I need to Factory reset it, AGAIN! So PLEASE, PLEASE, DO NOT BUY THIS!!!!!
...
show more
Reviewed in the United States on February 14, 2023 by Chris Pope
Color: Gray
We've had our Roomba for about a year now; we hesitated to buy it thinking, is it really worth it? We can just keep vaccuuming? It'll be fine? Wow, was this completely worth every penny. We have the i3 with the tall self empty can and we're so pleased. The Roomba itself has been cruising right along; he (our Roomba has he/him pronouns lol) does get stuck on things every now and again if we've left something out like a rogue sock or cord, but I'm actually surprised how often he knows how to avoid or move off of something. Every now and again he might bump a door, but that's only because of the thoroughness of finding the corners of the rooms. I typically run the Roomba when I'm at home (the noise is almost like a loud dishwasher? very manageable!) so I try to pay attention if he's wandered into a room and hasn't been back in a while, and he's often already switched off because of encountering an object. The suction is great, and he does a great job on carpet but kind of rummaging up the carpet for a deeper clean; seems super effective, but also just kind of looks nice so you can see where he's run through already where he hasn't. We have two cats and there were a big decision in getting this; love the handling of pet hair and that's excellent (I wish I could run him over my couch!) We live in a 1200sqft apartment, and this little guy just runs for a couple hours and can do the whole place essentially. I'm not sure how much I'd recommend one for a place much bigger than ours; I'm sure it'd be convenient for areas of the house still, but there's something especially great if you're in a smaller place about just turning this little guy on before you head out and knowing basically the whole place will be done when you get back. Here's the biggest success for us: I have very long and thick hair. Anyone who has very long and thick hair or who lives with us knows that long strands of hair end up absolutely everywhere. You'd be surprised the places these strands can end up. However, because they're so long and thick, they're death for vacuums, and I've grown up constantly cutting hair out of the bottoms of my heavy vacuums while dust pours out, a gross process. Roomba solved this! Yes, we do have to take him apart every now and again and we do have to cut some hair loose from the rotators; but the parts are totally built for this! Everything comes apart in such a sensible way, including inside the rotator tubes where hair sometimes spirals; all of these pieces very easily come apart then come back together so you can regularly clear out that long hair with zero issue, maybe one scissor snip, not dusty mess, it's so easy. This was my biggest hesitation with the Roomba; would my fishing-line-hair break it immediately? Instead, I was pleasantly surprised how perfectly it knows how to handle it, and our guy is going strong after a year. I haven't had to buy any replacement parts (though they're cheap if we need them!) Overall, ridiculously happy with this purchase!
...
show more
Reviewed in the United States on December 15, 2022 by Ghostbox
Color: Gray
I always thought these were gimmicky. But I got one for Christmas and liked it so much I bought 2 more. I have all hard flooring, no carpets, and 2 dogs, a cat, and two birds that all contribute to mess. So I had to sweep everyday or I'd get those pet-hair tubleweeds blowing around. Having to sweep all the time I get lazy and let it go; or when I do it I spend an hour or 2 sweeping or vacuuming. These robots save me hours of time and get the job done better because they are relentless. I set them on a schedule and they do it everyday completely. I have one robot that I manually have to empty the cup everyday. He's in the bedroom, since I'm in that room every day that's convenient enough and only takes 2 minutes. I bought an i3+ and an i4+, they self empty and I have to change the bag about once every 2-4 months. I don't mind the cost of the vacuum bags because they give me so many hours of my time back. The first one I got is the little guy. The little guy's name is Finigan. Finigan isn't too smart. He vacuums in a random pattern. I started with him in the main part of the house. He did a great job but his battery usually ran out before he considered himself done. So the space is a bit more then he likes. He did a great job though. But I loved it so much I got more to cover the whole house and moved him to the smaller bedroom area. In the bedroom suite (bedroom + bathroom~350sq ft), he spends about 45 minutes zipping around to cover everything. When his battery is low he docks himself. I have to empty his cup everyday. At first his cup was usually about 3/4 full to full. The first day it filled and he stopped. I had to empty it and re-start him. After a few months of daily vacuuming, the cup is about 1/4 full each day. So I switched him to a MWF schedule. He's still about 1/4 to 1/2 full each use. He even goes under the bed and keeps that clean. It's really great. The i3+ is Dixie. Dixie does the downstairs. Dixie is smart. She goes in straight line patterns and covers the entire space using a very planned straight line methodical routine. The first day she poked around learning. It was about 1.5 hours. After that, the entire job was planned out and she did the whole thing in about 45 minutes. She has no problem when certain doors are opened vs closed. When it's open, she goes in and vacuums. If it's closed, she skips it. Her cleaning time varies from about 45 minutes to 1hr 15minutes depending on whether the extra rooms are included (doors open vs closed). She drives back to her base when done and docks. And the base sucks out what she collected. I love the base, it means I do not have to tend to her everyday. I actually only need to change the bag about every 3-4 months. There's not a lot going on downstairs. The litter box is there and so the cat pays visits. But we aren't down there daily tracking things around. Thanks to Dixie, there's no fur balls, hair-tumbleweeds, dust, or dirt. Always a nice clean floor. It's awesome. Her map in the app shows where she found 'extra' dirt. Usually right in front of the litter box. It's so awesome not having to sweep up litter daily. I have her on a MWF schedule too and that is more than enough to keep the place clean. I recently got Nick, an i4+ for the upstairs. He's quieter. He's like Dixie in is planning and map reporting, so he's smart. It's very cool. He also gets the job done quickly. First day was like 1.5 hours learning. Now he's done in 50 minutes. The base sucks everything out so I don't have to tend to him as much as Finigan. He's in the main part of the house and it gets the most dirty. The dogs spend all there time here. The cat is up here most of the time. And we have two birds who send seeds everywhere. It's amazing how far from the cage those birds can flick seeds. And their feathers and drift everywhere too. Nick takes care of all that. I do need to manually get under the couch and behind and under furniture which I do once every month or so. But this robot is awesome. Saves me the day in and day out sweeping and vacuuming. Having robots spend 3+ robot labor hours each day vacuuming is an awesome human labor saver. Once they've hit the whole house for a month or two I'm able to step them back to MWF schedules. Their brushes do a great job in the corners, better than me sweeping or vacuuming; mostly because they hit those corners every day and spend the time swirling that brush to work on it. That constant day in day out effort pays off over time. I really can't imagine going back to manually doing this. I look back at the hours I spent doing it thinking that was Neanderthal days. I look forward to telling my grand kids how I used to walk to school uphill in the snow everyday, dial rotary phones, select music off of CD's I had to manually put into a machine, and now, that I spent hours sweeping the floors in the good old days.
...
show more
Reviewed in the United States on June 30, 2021 by Robert Jordan
Color: Gray
I got this guy for Black Friday after months of research and over analyzing. It is our first robot vacuum and we have been dreaming about one for a long time. It has been about a month since his inaugural run and I have to say I love him just as much, if not more, than I did that first day. He is a little noisy but his running noise is very easy to ignore and not distracting, even if you are in the same room, and both my husband and I have some auditory sensitivities. The self empty 100% sounds like a jet taking off. It isn’t so loud that it affects me in my home office two rooms away, but it is in our den and it is definitely “pause the tv” loud in the den. However the self emptying process takes maybe about ten seconds so is very easy to work around. We have two dogs and two cats. One of those dogs is a Great Pyrenees so it is basically like having five dogs. One of our cats is a Maine coon mix so lots of very downy fluff floating around, mixing with the great white Pyr tumbleweeds. This little guy does so well with all the fur. Obviously we do need to keep an eye on the spinning sweeper and the rollers but their maintenance is lower than any previous vacuum so we are very happy. Both my husband and I grow our hair out to donate so there is a lot of long hair floating about and again our little guy is excellent with the lightest of maintenance. As previously mentioned we have two cats so kitty litter is a thing, we also have a “flinger” so despite our best efforts it does travel quite a bit, until it is time for him to make his run, then it is gone! He has done well on our wood floors, our stone floors, he even does well “off roading” on our brick fireplace. Our rugs look great too. I will say our only real struggle is our high pile carpet in our living room. It is an inherited home and that carpet is an area we have not gotten to renovating yet, so it is old, dirty and very plush. Think almost shag carpet but thicker. He definitely struggles to take care of it, trying to roll through all that fluff and trying to suck up accumulated dust, etc. from all that fluff, he almost always needs to take a little break to recharge before he completes the room. (Me too bud, me too!) However, he does make it through and it does look better than it has in years, so he is still doing a great job. With all that he has to tackle we have him scheduled to run twice daily and occasionally we will skip a run or block off rooms that have not been used. It would obviously be cool to have the options the other roombas have to create keep out zones or have specific tasks for them to do but it has not been that difficult to block off rooms or shut doors if need be. If he doesn’t have to tackle the living room carpet he can do his whole run without needing to recharge. I can not speak highly enough about how this little addition to our family has improved our life. To be rushing around to get ready for the tiny Christmas company we got to have, and have our little buddy running around helping, I can not explain how much of an impact that makes on our home and our mentality. This is not the perfect robot vacuum but for the money, he is above and beyond perfect for our family. Will definitely be a roomba “parent” for life! 😂
...
show more
Reviewed in the United States on December 27, 2020 Reviewed in the United States on December 27, 2020 by Bridget K Andrews
Color: Black
My house is a combination of hardwood, ceramic tile, and carpeted floors. I got this to help with maintenance. I vacuum fairly regularly, but wanted to be able to automate some of the vacuuming maintenance in the house. First off, when I ordered it there was no indication that I was going to have to be home to give a secret code to the delivery driver, so I missed it when it shoed up and had to call to get my personal code and have it re-delivered. Once it arrived unpacking was easy, but there are no real instructions with it, just a "quick setup" card with a QR code that prompts you to download the app and walks you through setup (sort of). After the setup you're kind of on your own to figure out how to use the app and get this thing working on it's own. The app is Hot-Garbage, not easy to use, not easy to set up, not easy to modify things once they are set up. It took me a couple of hours to get it functioning and map my house, then more time searching youtube videos and other online sources to set things up for a fully automated vacuuming schedule. The quality of the seems good, but it gets stuck on cords or area rugs, the sensors don't seem to see power cords, cables, shoe laces, or any other type of cordage, but it does pick up dirt, debris, and hair from the floor. The app is good about telling you when the robot needs help, but even though the app maps your house out for you, it can't seem to tell you where the robot's last known location was when it stopped working. So if you're out of town and it "needs help" it's an easter egg hunt when you get home to find the thing, clear it, and put it back on the charger. It seems fairly sturdy/well built, but the hopper is a bit small and I don't like that the base uses a tiny vacuum bag that I will have to dispose of, a reusable bag makes more sense to me, or even better a hopper that I can empty and wash/reuse (like a Dyson). Time will tell, I'll update my review if more issues come up.
...
show more
Reviewed in the United States on March 10, 2026 by Consumer